https://erowid.org/experiences/subs/exp_Caffeine.shtml https://erowid.org/experiences/subs/exp_Caffeine.shtml These are some modern takes on the same idea. Now

https://erowid.org/experiences/subs/exp_Caffeine.shtml https://erowid.org/experiences/subs/exp_Caffeine.shtml These are some modern takes on the same idea. Now that we know the “barely perceptible radations” from stomach to brain have a formula.